This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

using an older version of firefox can corrupt bookmarks and browsing history version 90

  • 1 freagra
  • 1 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó cor-el

l.demarialopez
l.demarialopez
more options

Hello,

Since a few days Firefox starts with the same message: using an older version of firefox can corrupt bookmarks and browsing history.... the current version is 90 and is updated to 91.0.1

Hello, Since a few days Firefox starts with the same message: using an older version of firefox can corrupt bookmarks and browsing history.... the current version is 90 and is updated to 91.0.1
Attached screenshots

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You get this message if you start an older Firefox version than last used this profile. Current Firefox releases do not allow this and show this message.

See "Blocking downgrades" and "Disabling the changes".